Step 38: Fuel hopper - 2

Step 39: Here's what you should have

Congratulations, you've finished all the fabrication steps. Now continue to the GEK Final Assembly Instructable to put all the pieces together and li...

Step 22: Downdraft reactor - 7

Install Nozzles

Weld 3/8 street elbows onto ends of 1" air nozzle tubes. Make sure the elbows are angled at 90 degree from the nozzle tubes

Screw in 1/2" X 6" pipe nipples into bottom of the reactor. Tighten modestly with pliers

Put clay gasket material around bottom of nipples, and a thin coating around the threads at the top of the nipples

Push the nozzles down over the nipples, into the clay. Take care to not get clay sealant into the nozzle tube passage.

Depending on your nozzle preference, and desired final height, you may want to install some spacers on the 1/2" nipple before pushing on nozzle tubes. In general, you should start with the nozzles at a height above the reduction cone, equal to the diameter of the reduction cone entrance.

The nozzles should point inwards towards the center of the reactor, and be firmly positioned in the clay. They should be difficult to turn.